2771390 has 16 divisors (see below), whose sum is σ = 5008608. Its totient is φ = 1104096.

The previous prime is 2771389. The next prime is 2771401. The reversal of 2771390 is 931772.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3359 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (313038).

2^2771390 is an apocalyptic number.

2771390 is a deficient number, since it is larger than the sum of its proper divisors (2237218).

2771390 is a wasteful number, since it uses less digits than its factorization.

2771390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 2771390 is about 1664.7492303647. The cubic root of 2771390 is about 140.4642749728.

It can be divided in two parts, 27 and 71390, that added together give a palindrome (71417).

The spelling of 2771390 in words is "two million, seven hundred seventy-one thousand, three hundred ninety".